Skating on thin ice   Pressure - you feel it at school, your teacher feels it during class (yes, a room full of little scientists can be stressful for some teachers), and your dad feels pressure when Mom asks him for the tenth time to take out the trash. Here's an interesting experiment that demonstrates a different kind of pressure - the forces of scientific pressure and how it can affect other objects. Place the corked bottle on a table. It helps if the bottle has a small neck. Balance an ice cube on the cork. Cut off a 12 inch section of wire. Tie two hammers or other heavy objects to both ends of the wire. Balance the wire across the middle of the…
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